package com.huike.framework.security.filter;

import java.io.IOException;
import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.web.authentication.WebAuthenticationDetailsSource;
import org.springframework.stereotype.Component;
import org.springframework.web.filter.OncePerRequestFilter;
import com.huike.common.core.domain.model.LoginUser;
import com.huike.common.utils.SecurityUtils;
import com.huike.common.utils.StringUtils;
import com.huike.framework.web.service.TokenService;

/**
 * token过滤器 验证token有效性
 * 
 * 
 */
@Component
public class JwtAuthenticationTokenFilter extends OncePerRequestFilter {
    @Autowired
    private TokenService tokenService;

    @Override
    protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain chain)
            throws ServletException, IOException {
        //获取用户信息及权限信息
        LoginUser loginUser = tokenService.getLoginUser(request);
        //判断对象是否为空，信息是否为空
        if (StringUtils.isNotNull(loginUser) && StringUtils.isNull(SecurityUtils.getAuthentication())) {
            //刷新令牌有效期
            tokenService.verifyToken(loginUser);

            //把用户信息权限信息放到Authentication对象
            UsernamePasswordAuthenticationToken authenticationToken = new UsernamePasswordAuthenticationToken(loginUser, null, loginUser.getAuthorities());
            authenticationToken.setDetails(new WebAuthenticationDetailsSource().buildDetails(request));

            //把Authentication对象放到本地线程，方便后续调用
            SecurityContextHolder.getContext().setAuthentication(authenticationToken);
        }
        chain.doFilter(request, response);
    }
}
